Home / 740,084.96-1,021,757.28-485,881.76

Finding the Fourth Proportional to 740,084.96, 1,021,757.28 and 485,881.76

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Solution

The fourth proportional to 740,084.96, 1,021,757.28 and 485,881.76 is: 670,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,084.96 : 1,021,757.28 = 485,881.76 : x
  2. Step 2: Convert to fraction form
    740,084.96/1,021,757.28 = 485,881.76/x
  3. Step 3: Cross multiply
    740,084.96x = 1,021,757.28 × 485,881.76
  4. Step 4: Simplify right side
    740,084.96x = 496,453,225,499.21
  5. Step 5: Solve for x
    x = 496,453,225,499.21/740,084.96
  6. Step 6: Final answer
    x = 670,805.72

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.